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  2. Outdoor wood-fired boiler - Wikipedia

    en.wikipedia.org/wiki/Outdoor_wood-fired_boiler

    The outdoor wood boiler is a variant on the indoor wood, oil or gas boiler. An outdoor wood boiler or outdoor wood stove is a unit about 4-6 feet wide and around 10 feet long. It is made up of four main parts- the firebox, which can be either round or square, the water jacket, the heat exchanger, and the weather proof housing.

  3. OpenTherm - Wikipedia

    en.wikipedia.org/wiki/OpenTherm

    OpenTherm was founded in 1996 because multiple manufacturers needed a simple-to-use communicating system between room controller and boiler. It had to run, like the existing controllers, over the existing two wires, not polarity sensitive, without the use of batteries.

  4. Thermostat - Wikipedia

    en.wikipedia.org/wiki/Thermostat

    Baseboard heaters will especially benefit from a programmable thermostat which is capable of continuous control (as are at least some Honeywell models), effectively controlling the heater like a lamp dimmer, and gradually increasing and decreasing heating to ensure an extremely constant room temperature (continuous control rather than relying ...

  5. Centennial Light - Wikipedia

    en.wikipedia.org/wiki/Centennial_Light

    The bulb's longevity has been attributed to the high quality of its manufacture, [4] it being seldom turned off, [5] [6] and its low wattage. [5] [6] Originally a 60-watt bulb, the light has for many years emitted dim light equivalent to a 4-watt bulb, about the strength of a nightlight. [4]

  6. Hot water reset - Wikipedia

    en.wikipedia.org/wiki/Hot_water_reset

    A hot water reset control loop measures the outside air temperature; this information is used to estimate demand or heating load as the outdoor temperature varies. The supply hot water temperature is modulated up and down range in an inverse linear ratio to outside air temperature. The typical range for conventional boilers is to vary the ...

  7. Electrical wiring in North America - Wikipedia

    en.wikipedia.org/wiki/Electrical_wiring_in_North...

    One important property of the insulation which affects the current-carrying capacity of the wire is the maximum conductor temperature. This, in combination with the ambient temperature and ability of the environment to absorb heat, determines the amount of tolerable copper loss in the wire, and therefore its size in relation to the load current ...

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    outdoor wood boiler temperature control switch 110 volt 5 watt bulb equivalent